This Grade 3 engineering worksheet applies the design process to real-world problems, including a paper-and-tape cup holder and two competing bridge designs. Four multiple-choice items and five fill-ins build NGSS 3-5-ETS1 mastery of constraints, criteria, prototypes, and iteration. Grade 3 students practice comparing test results, choosing improvements, and explaining why engineers keep iterating their designs. This Grade 3 printable works well for classroom practice or homework.
Style:
Engineering Design Process
Part A: Multiple Choice
Circle the best answer for each question.
1. Grade 3 students must design a cup holder that fits on a desk using only paper and tape. What is the main constraint?
A) The students' names
B) The classroom's paint color
C) The allowed materials are only paper and tape
D) The time of day when they work
2. A toy car design must roll 1 meter. This rule is an example of a:
A) Constraint on color
B) Criterion for success
C) List of materials
D) Name for the prototype
3. A Grade 3 team tests two bridge designs. Design A holds 8 blocks, Design B holds 12. What should they do?
A) Pick Design A because it is simpler
B) Study Design B and improve weak parts
C) Start over with no data
D) Combine them randomly without planning
4. Why do Grade 3 engineers iterate their designs?
A) Because the first try is always perfect
B) To waste time and materials
C) To improve the design based on test results
D) Because the teacher requires them to
Part B: Fill in the Blank
Write the correct answer on each line.
1. A working test version of a design is called a prototype.
2. The limits on a design, like materials or time, are called constraints.
3. The rules that tell when a design is successful are the criteria.
4. Repeating the design steps to make a design better is iteration.
5. When Grade 3 engineers change a design based on data, they improve it.
Engineering Design Process
★ Part A: Multiple Choice
Circle the best answer for each question.
1. Grade 3 students must design a cup holder that fits on a desk using only paper and tape. What is the main constraint?
A) The students' names
B) The classroom's paint color
C) The allowed materials are only paper and tape
D) The time of day when they work
2. A toy car design must roll 1 meter. This rule is an example of a:
A) Constraint on color
B) Criterion for success
C) List of materials
D) Name for the prototype
3. A Grade 3 team tests two bridge designs. Design A holds 8 blocks, Design B holds 12. What should they do?
A) Pick Design A because it is simpler
B) Study Design B and improve weak parts
C) Start over with no data
D) Combine them randomly without planning
4. Why do Grade 3 engineers iterate their designs?
A) Because the first try is always perfect
B) To waste time and materials
C) To improve the design based on test results
D) Because the teacher requires them to
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) A working test version of a design is called a prototype.
2) The limits on a design, like materials or time, are called constraints.
3) The rules that tell when a design is successful are the criteria.
4) Repeating the design steps to make a design better is iteration.
5) When Grade 3 engineers change a design based on data, they improve it.
Ready to Practice?
Complete each section carefully.
9 Questions
12-18 minutes
Auto-graded
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